As DSM investigated how additive manufacturing might help improve orthotic and prosthetic production, the team quickly realized it needed help from several partners to develop a comprehensive digital workflow solution, helping ProReva switch from traditional to full digital production of orthotics and prosthetics.
That integrated process starts with ProReva who works with healthcare providers to assess needs and electronically scan a patient’s injured limb to capture measurements and features needed for 3D printing. Software company Twikit has developed an application, TwikFit®, that translates scan data and patient needs to production-ready CAD files.
Twikit founder and CEO Martijn Joris says, “The TwikFit® cloud-based SaaS application bridges the gap between patient and product manufacture, cutting out several manual steps. The software integrates product design and engineering expertise with a user-friendly interface. It removes the complexity of CAD and allows non-technical orthotic and prosthetic professionals to maximize skills to customize and build high-quality digital models that are production ready.”
Devices designed using TwikFit® are printed with DSM filament materials on Ultimaker 3D printers. Peter Overgaauw, Ultimaker’s Lead Application Engineer says, “The Ultimaker 3D printer portfolio can be scaled easily to produce different types and sizes of product and runs DSM filament materials that are available on the market.”
From DSM’s filament portfolio, the team selected Novamid® ID1030 CF10, a strong and stiff material ideal for structural build, in combination with Arnitel® ID2045, a soft and flexible, though resistant material. This is ideal for the inner, softer part of the device that touches the skin as it passed relevant regulatory approvals for irritation and cytotoxicity.